BUG #3287: I cann't instal postgres sql in windows vista

The following bug has been logged online:

Bug reference: 3287
Logged by: Siva
Email address: siva@dotnethk.org
PostgreSQL version: postgresql-8.1
Operating system: Windows vista
Description: I cann't instal postgres sql in windows vista
Details:

Dear All,
I cann't instal postgres sql in windows vista.How i can instal postgres
sql in windows vista.Any body know my queries pls reply me.Advance thanks
for u.

With Kindly Regards
Siva